Dimers of formic acid, acetic acid, formamide and pyrrole-2-carboxylic acid: an ab initio study.
Gora RW, Grabowski SJ, Leszczynski J. Dimers of formic acid, acetic acid, formamide and pyrrole-2-carboxylic acid: an ab initio study. J Phys Chem A. 2005 Jul 28; 109(29):6397-405.